The advancement of tandem and bifacial solar cells is an effective strategy for boosting the power conversion efficiency over the state-of-the-art single-junction limit. In this study, a high-throughput optoelectrical modelling approach is developed, which allows for the exploration of hundreds of thousands of combinations of thicknesses and bandgaps of active layers for both two-terminal and four-terminal bifacial tandem solar cells under varying lighting conditions, reveals the distribution of the hidden parameters and provides more accurate predictions of power generation density potential. Specifically, for two-terminal configurations, introduction of a low-bandgap perovskite (approximately 1.44 eV) is highly needed, for achieving a 13.44% increase in the power output at 30% albedo compared to monofacial configurations. Additionally, the power output of four-terminal configurations can achieve a power generation density exceeding 495 W m⁻² when albedo reaches 80%. This study suggests the economic feasibility of bifacial tandem solar cells as a very promising technology for the photovoltaic market.

中文翻译：

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高通量光电模型揭示双面串联太阳能电池发电密度的提升


串联和双面太阳能电池的进步是将功率转换效率提高到超越最先进的单结极限的有效策略。在这项研究中，开发了一种高通量光电建模方法，该方法可以在不同的照明条件下探索两端和四端双面串联太阳能电池有源层的数十万种厚度和带隙组合，揭示隐藏参数的分布并提供更准确的发电密度潜力预测。具体来说，对于两端配置，非常需要引入低带隙钙钛矿（约 1.44 eV），以便与单面配置相比，在 30% 反照率下实现功率输出增加 13.44%。此外，当反照率达到80%时，四端配置的功率输出可以实现超过495 W m ⁻² 的发电密度。这项研究表明双面串联太阳能电池作为光伏市场一项非常有前途的技术的经济可行性。